Aerosol Tinplate Can Products Electrolytic Tin Plate Coils BA T4 2.8/2.8 High Strength
1. Introduction
Tinned substrate steel is mostly low carbon mild steel, the carbon content is generally 0.03% ~ 0.13%. Before the development of continuous casting technology, mostly casting boiling steel and gland steel were used. Although these steels have good surface quality and can be rolled to tin-coated substrates, they cannot be used as tin-coated substrates with high forming properties due to the existence of component segregation during the casting and solidification of the ingot and the great difference in mechanical properties in the rolling direction and width direction. Since the rapid development of continuous casting technology in the 1970s, the continuous casting slab is suitable for improving the shape quality and forming stability of the tin plate because of its uniform chemical composition, small segregation and small fluctuation in mechanical properties. At present, the steel used in tinplate has basically been continuously cast.
The chemical composition of tinplate steel can be divided into L, MR, MC, D type 4 according to ASTM A623 standard, and its chemical composition is shown in Table 1. The percentage content of each element listed in the table is the maximum, and the actual content is usually much lower. Among them, L-shaped steel residual elements (Cu, Ni, Cr, Mo and other elements) composition is particularly small, with excellent corrosion resistance, MR Type residual element composition is wider, good corrosion resistance, used as a general food container, MC type P content is higher, play a role in increasing strength, for strength requirements and corrosion resistance requirements are not high purposes, D type is aluminum killing steel, For use in deep drawing or under conditions prone to tensile strain marks. There is also a N type steel, is in L, MR, MC steel nitrogen to improve the strength of the steel, in addition, the United States, Japan some tinplating professional factory using continuous casting method also produced tinplate with quasi-boiling steel and aluminum killed steel.
With the improvement of tin plate production technology, the development of coating corrosion resistance. In order to reduce costs, some products with low corrosion resistance requirements began to use ordinary cold-rolled steel SPCC and SPCD as tinplate substrates.
We are the professional manufacturer in China with advanced technical equipments, first class inspection devices and substantial experience in production. It possesses integrated process lines including smelting, hot rolling, cold rolling and coating. The product catalogue covers ETP and TFS with an annual output over 1 million tons. Our tin mill products are widely sold and used throughout the world in application of packaging of food, beverage and industrial goods and enjoy high reputation in the international market.
2. Features of ETP Products
By selecting a proper coating weight, appropriate corrosion resistance is obtained against container contents.
Printing is beautifully finished using various lacquers and inks.
TIN PLATE is widely used for making various types of cans by soldering or welding.
By selecting a proper temper grade, appropriate formability is obtained for various applications as well as the required strength after forming.
Electrolytic ETP is characterized by its beautiful metallic luster. Products with various kinds of surface roughness are produced by selecting the surface finish of the substrate steel sheet.
3. Mechanical Properties of DR Tin Mill Products
| GB/T2520, JIS G3303 | EN10202 | TARGET VALUE | TOLERANCE RANGE | YIELD STREGNTH/MPA | TENSILE STRENGTH/MPA |
| T-1 | TS230 | 49 | 49±3 | 230±50 | 325±50 |
| T-2 | TS245 | 53 | 53±3 | 245±50 | 340±50 |
| T-2.5 | TS260 | 55 | 55±3 | 260±50 | 360±50 |
| T-3 | TS275 | 57 | 57±3 | 275±50 | 375±50 |
| T-3.5 | | 59 | 59±3 | 290±50 | 390±50 |
| T-4 | TH415 | 61 | 61±3 | 415±50 | 435±50 |
| T-5 | TH435 | 65 | 65±3 | 435±50 | 460±50 |
| DR-7M | TH520 | 71 | 71±3 | 520±50 | 540±50 |
| DR-8 | TS550/TH550 | 73 | 73±3 | 550±50 | 570±50 |
| DR-8M | TH580 | 73 | 73±3 | 580±50 | 590±50 |
| DR-9 | TH620 | 76 | 76±3 | 620±50 | 625±50 |
| DR-9M | | 77 | 77±3 | 660±50 | |
| DR-10 | | 80 | 80±3 | 690±50 | |
| The hardness is the average value of 2 samples, allowing 1 of them to exceed the specified allowable range by 1 unit. |
| a The yield strength is a reference value determined as required. b Yield strength is the average value of the two samples. The sample is P5 in GB/T 228, and the direction of the sample is transverse. c Due to the thickness thinning effect, the elongation is too low and the yield strength cannot be measured. In this case, the yield strength is replaced by the tensile strength. d For the tensile test, the width of the parallel part of the sample is (12.5±1) mm, and the standard distance L0=50mm. Before the test. The sample should be artificially aged for 20min at 200℃. |
- Temper after single reduce JIS G3303-2008
| Temper | Hardness(HR30T) |
| Target Value | Tolerance range |
| T-2 | 53 | 53±5 |
| T-2.5 | 55 | 55±5 |
| T-3 | 57 | 57±5 |
| T-3.5 | 59 | 59±5 |
| T-4 | 61 | 61±5 |
| T-5 | 65 | 65±5 |
- Temper after Double Reduce(DR)JIS G3303-2008
| Temper | HR30T | Target value |
| DR8 | 73±5 | 73 |
| DR9 | 76±5 | 76 |
| DR9M | 77±5 | 77 |
| DR10 | 80±5 | 80 |
Code and standard comparison of the roughness of the original plate
| Single Reduce | Ra(μm) | GB/T2520-2008 | JISG3303-87 | POSCO | Q/BQB451-2004 |
| Bright | 0.2~0.4 | B | B | BF | B |
| Stone surface | 0.4~0.6 | R | R | RX | R |
| Silver Surface | 1.0~1.8 | S | M | D5,D7 | S |
| Double Reduce | 0.4~0.6 | R | R | RX,RD | R |
4. Product Standard
ETP orders are placed with Baosteel in accordance with Q/BQB 450-2009 standard which uses in a non-equivalent to JIS G 3303:2008, DIN EN 10202:2001, EN 10203 standards.
TFS orders are placed with Baosteel in accordance with Q/BQB 455-2009 standard which uses in a non-equivalent to JIS G 3315:2008, DIN EN 10202:2001, EN 10203 standards.
5. Usage Precautions for ETP
- As ETP is covered by soft metallic tin coatings, due precautions should be taken not to cause scratches by rough handling or vibration during transportation.
- Paintability, printability, solderability, and mechanical properties of ETP tend to 收deteriorate as time elapses after production. Use as soon as possible after delivery.
- Although ETP has excellent corrosion resistance, it tends to rust in a humid atmosphere. Use as soon as possible after unpacking.
- Tin is dissolved by a strongly alkaline solution. When using ETP for making cans for alkaline contents, paint the internal surface.
- As contents that contain sulfur cause blackening of the ETP surface, paint the internal surface.
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6. EQUIPMENT & PRODUCTION LINES
7. TINPLATE COILS
8. APPLICATIONS
Modern industrial tinplate is usually a cold-rolled, low carbon sheet coated with commercial pure tin on both sides, which combines the strength and formability of steel with the corrosion resistance, weldability and appearance of tin. Tinplate is widely used in the food industry and a variety of containers, stamped products, packaging materials for non-food industry, such as food cans, spray cans, bottle caps, gas containing beverage cans, packaging materials and non-packaging materials (home appliances, toys, stationery, engineering).
Aerosol Tinplate Can
As is known, light can cause and accelerate oil oxidation, which reduces nutrition value of oil by destroying its vitamin A and D, and even more seriously, by generating harmful substances. And, oxygen in the air can also lead to food oil oxidation, resulting in decreased protein biomass and damaged vitamins. To avoid this, we have developed tinplate that has high opacity and excellent airtight seal, and can provide better protection for the contained oil, food, beverage, and so on. Hence, the oil tin can is ideal for packing lipids.
To provide the highest quality oil tinplate can, we implement rigid inspection on the whole process from material procurement to the final product delivery. In addition to strict monitoring on working procedures such as acid washing, reciprocal rolling, and degreasing, etc., our specialized personnel check our products through mechanical property tester and coating tester to ensure superior performance of our oil tin can. As a result, our oil tin can features strong corrosion resistance, high formability and easy welding, and you can thus feel secure in choosing our products.
9. Packing and Marking
Offers coils and sheets, coil packed in a vertical form or a horizontal.
A label that indicates the manufacturing history is affixed to the outside of the packaging. In addition, a service card is contained inside.
With regard to types of packing and markings, please consult us.
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Tin Coated Steel Sheet BA T4 2.8/2.8 High Strength Electrolytic Tinplate Coil For Aerosol Tinplate Can Products Images
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